Docker starts to look like a competitor to virtualization environments like VMWare VSphere deplyments. In the following knowledge base article Docker Reference Architecture: Docker Datacenter Best Practices and Design Considerations there is a very interesting presentation on how to migrate a datacenter to docker. Docker Datacenter (DDC) is the enterprise container platform from Docker to… Read More: Docker in the datacenter with DDC »
The best way to do simple video in Linux is using the command line. This way you can do quick one liner commands that do the job fast and clean. My favourite tool is ffmpeg. Install ffmpeg: If you do not have it already installed to install ffmpeg simply do (in Fedora): Install the rpmfusion… Read More: Linux: Command line video editing »
This is post in continuation of Docker: Orchestrate multiple containers with docker-compose The same application environment is specified using the docker-compose V2 specification. This looks very similar but with a simplified syntax and some extra features. STEP 1: List the existing images # docker images REPOSITORY TAG IMAGE ID CREATED SIZE 10.0.0.245:5000/test_app.v7 flat 53ac9d27fbb3 5… Read More: Docker: Orchestrate multiple containers with docker-compose V2 »
Everybody knows that backup is important and having a backup setup on an external resource as remote server or tape drive is even better. I wanted to set up an automatic backup that does not require a lot of intervention, to safeguard the most important data hosted on my servers: the owncloud storage space and… Read More: Backup: Scheduled backup with #Yosemite Server Backup »
I always missed some nice Linux tools when I work on Windows. I know that is nice to have a fancy GUI but sometimes you cannot do even simple things without paying a lot for some bloated application. There is the simple problem of optimizing pdf files, especially big manuals, pdf files containing images or… Read More: A free and new way to shrink pdf files in… »
There is a new tool from Google available to all that want to keep a backup of their Google data. I know that Google means “free” mail and “free” cloud space for lots of you but for the faint hearted a backup is always welcome. If we look at the Yahoo issue (due to bad… Read More: Back-up your Google data »
Starting with build 1607 finally Windows 10 has a Linux in it. To enable the Linux user space (basically an Ubuntu) the following has to be done: STEP 1: Update Windows to 1607 Make sure you update Windows 10 to a build at least 1607. STEP 2: Activate developer mode Settings -> Updates & security… Read More: Windows finally has an OS in it »
Everybody knows the importance of a daily back-up. There are a lot of tools with fancy GUIs and useless information but sometimes the best is to keep it simple. Linux offers some very powerful build-in ways of creating a perfect backup. The scope is to create a secure incremental automatic daily backup without using fancy… Read More: Backup: Daily back-up on external encrypted disk with rsync and… »
Using SSD drives is no longer an exception, they are used in home systems but also in server systems to hold at least the OS, or other resources that need more speed than space. As any other storage disk a SSD can become fragmented as successive write/delete operations will try to use the available storage.… Read More: Storage: Optimize SSDs with fstrim »
This is a follow-up tutorial on the DRBD replication posts about resynchronization of sites after the failed DR site is recovered. More than a year ago I described in a long tutorial how to use DRBD in a real production environment and the challenges associated to it. See: DRBD based disk replication of a production… Read More: #DRBD: Synchronization of sites after the failed DR (disaster recovery)… »